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3decb14a JR |
1 | /* |
2 | * (C) Copyright 2010 | |
3 | * Linaro LTD, www.linaro.org | |
4 | * Author: John Rigby <john.rigby@linaro.org> | |
5 | * Based on TI's signGP.c | |
6 | * | |
7 | * (C) Copyright 2009 | |
8 | * Stefano Babic, DENX Software Engineering, sbabic@denx.de. | |
9 | * | |
10 | * (C) Copyright 2008 | |
11 | * Marvell Semiconductor <www.marvell.com> | |
12 | * Written-by: Prafulla Wadaskar <prafulla@marvell.com> | |
13 | * | |
14 | * See file CREDITS for list of people who contributed to this | |
15 | * project. | |
16 | * | |
17 | * This program is free software; you can redistribute it and/or | |
18 | * modify it under the terms of the GNU General Public License as | |
19 | * published by the Free Software Foundation; either version 2 of | |
20 | * the License, or (at your option) any later version. | |
21 | * | |
22 | * This program is distributed in the hope that it will be useful, | |
23 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
24 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
25 | * GNU General Public License for more details. | |
26 | * | |
27 | * You should have received a copy of the GNU General Public License | |
28 | * along with this program; if not, write to the Free Software | |
29 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, | |
30 | * MA 02111-1307 USA | |
31 | */ | |
32 | ||
33 | /* Required to obtain the getline prototype from stdio.h */ | |
34 | #define _GNU_SOURCE | |
35 | ||
36 | #include "mkimage.h" | |
37 | #include <image.h> | |
38 | #include "omapimage.h" | |
39 | ||
40 | /* Header size is CH header rounded up to 512 bytes plus GP header */ | |
41 | #define OMAP_CH_HDR_SIZE 512 | |
42 | #define OMAP_GP_HDR_SIZE (sizeof(struct gp_header)) | |
43 | #define OMAP_FILE_HDR_SIZE (OMAP_CH_HDR_SIZE+OMAP_GP_HDR_SIZE) | |
44 | ||
45 | static uint8_t omapimage_header[OMAP_FILE_HDR_SIZE]; | |
46 | ||
47 | static int omapimage_check_image_types(uint8_t type) | |
48 | { | |
49 | if (type == IH_TYPE_OMAPIMAGE) | |
50 | return EXIT_SUCCESS; | |
51 | else { | |
3decb14a JR |
52 | return EXIT_FAILURE; |
53 | } | |
54 | } | |
55 | ||
56 | /* | |
57 | * Only the simplest image type is currently supported: | |
58 | * TOC pointing to CHSETTINGS | |
59 | * TOC terminator | |
60 | * CHSETTINGS | |
61 | * | |
62 | * padding to OMAP_CH_HDR_SIZE bytes | |
63 | * | |
64 | * gp header | |
65 | * size | |
66 | * load_addr | |
67 | */ | |
68 | static int valid_gph_size(uint32_t size) | |
69 | { | |
70 | return size; | |
71 | } | |
72 | ||
73 | static int valid_gph_load_addr(uint32_t load_addr) | |
74 | { | |
75 | return load_addr; | |
76 | } | |
77 | ||
78 | static int omapimage_verify_header(unsigned char *ptr, int image_size, | |
79 | struct mkimage_params *params) | |
80 | { | |
81 | struct ch_toc *toc = (struct ch_toc *)ptr; | |
82 | struct gp_header *gph = (struct gp_header *)(ptr+OMAP_CH_HDR_SIZE); | |
83 | uint32_t offset, size; | |
84 | ||
85 | while (toc->section_offset != 0xffffffff | |
86 | && toc->section_size != 0xffffffff) { | |
87 | offset = toc->section_offset; | |
88 | size = toc->section_size; | |
89 | if (!offset || !size) | |
90 | return -1; | |
91 | if (offset >= OMAP_CH_HDR_SIZE || | |
92 | offset+size >= OMAP_CH_HDR_SIZE) | |
93 | return -1; | |
94 | toc++; | |
95 | } | |
96 | if (!valid_gph_size(gph->size)) | |
97 | return -1; | |
98 | if (!valid_gph_load_addr(gph->load_addr)) | |
99 | return -1; | |
100 | ||
101 | return 0; | |
102 | } | |
103 | ||
104 | static void omapimage_print_section(struct ch_settings *chs) | |
105 | { | |
106 | const char *section_name; | |
107 | ||
108 | if (chs->section_key) | |
109 | section_name = "CHSETTINGS"; | |
110 | else | |
111 | section_name = "UNKNOWNKEY"; | |
112 | ||
113 | printf("%s (%x) " | |
114 | "valid:%x " | |
115 | "version:%x " | |
116 | "reserved:%x " | |
117 | "flags:%x\n", | |
118 | section_name, | |
119 | chs->section_key, | |
120 | chs->valid, | |
121 | chs->version, | |
122 | chs->reserved, | |
123 | chs->flags); | |
124 | } | |
125 | ||
126 | static void omapimage_print_header(const void *ptr) | |
127 | { | |
128 | const struct ch_toc *toc = (struct ch_toc *)ptr; | |
129 | const struct gp_header *gph = | |
130 | (struct gp_header *)(ptr+OMAP_CH_HDR_SIZE); | |
131 | uint32_t offset, size; | |
132 | ||
133 | while (toc->section_offset != 0xffffffff | |
134 | && toc->section_size != 0xffffffff) { | |
135 | offset = toc->section_offset; | |
136 | size = toc->section_size; | |
137 | ||
138 | if (offset >= OMAP_CH_HDR_SIZE || | |
139 | offset+size >= OMAP_CH_HDR_SIZE) | |
140 | exit(EXIT_FAILURE); | |
141 | ||
142 | printf("Section %s offset %x length %x\n", | |
143 | toc->section_name, | |
144 | toc->section_offset, | |
145 | toc->section_size); | |
146 | ||
147 | omapimage_print_section((struct ch_settings *)(ptr+offset)); | |
148 | toc++; | |
149 | } | |
150 | ||
151 | if (!valid_gph_size(gph->size)) { | |
152 | fprintf(stderr, | |
153 | "Error: invalid image size %x\n", | |
154 | gph->size); | |
155 | exit(EXIT_FAILURE); | |
156 | } | |
157 | ||
158 | if (!valid_gph_load_addr(gph->load_addr)) { | |
159 | fprintf(stderr, | |
160 | "Error: invalid image load address %x\n", | |
161 | gph->size); | |
162 | exit(EXIT_FAILURE); | |
163 | } | |
164 | ||
165 | printf("GP Header: Size %x LoadAddr %x\n", | |
166 | gph->size, gph->load_addr); | |
167 | } | |
168 | ||
169 | static int toc_offset(void *hdr, void *member) | |
170 | { | |
171 | return member - hdr; | |
172 | } | |
173 | ||
174 | static void omapimage_set_header(void *ptr, struct stat *sbuf, int ifd, | |
175 | struct mkimage_params *params) | |
176 | { | |
177 | struct ch_toc *toc = (struct ch_toc *)ptr; | |
178 | struct ch_settings *chs = (struct ch_settings *) | |
179 | (ptr + 2 * sizeof(*toc)); | |
180 | struct gp_header *gph = (struct gp_header *)(ptr + OMAP_CH_HDR_SIZE); | |
181 | ||
182 | toc->section_offset = toc_offset(ptr, chs); | |
183 | toc->section_size = sizeof(struct ch_settings); | |
184 | strcpy((char *)toc->section_name, "CHSETTINGS"); | |
185 | ||
186 | chs->section_key = KEY_CHSETTINGS; | |
187 | chs->valid = 0; | |
188 | chs->version = 1; | |
189 | chs->reserved = 0; | |
190 | chs->flags = 0; | |
191 | ||
192 | toc++; | |
193 | memset(toc, 0xff, sizeof(*toc)); | |
194 | ||
195 | gph->size = sbuf->st_size - OMAP_FILE_HDR_SIZE; | |
196 | gph->load_addr = params->addr; | |
197 | } | |
198 | ||
199 | int omapimage_check_params(struct mkimage_params *params) | |
200 | { | |
201 | return (params->dflag && (params->fflag || params->lflag)) || | |
202 | (params->fflag && (params->dflag || params->lflag)) || | |
203 | (params->lflag && (params->dflag || params->fflag)); | |
204 | } | |
205 | ||
206 | /* | |
207 | * omapimage parameters | |
208 | */ | |
209 | static struct image_type_params omapimage_params = { | |
210 | .name = "TI OMAP CH/GP Boot Image support", | |
211 | .header_size = OMAP_FILE_HDR_SIZE, | |
212 | .hdr = (void *)&omapimage_header, | |
213 | .check_image_type = omapimage_check_image_types, | |
214 | .verify_header = omapimage_verify_header, | |
215 | .print_header = omapimage_print_header, | |
216 | .set_header = omapimage_set_header, | |
217 | .check_params = omapimage_check_params, | |
218 | }; | |
219 | ||
220 | void init_omap_image_type(void) | |
221 | { | |
222 | mkimage_register(&omapimage_params); | |
223 | } |